ISO/CD 25899

Technical requirements for sludge as auxiliary solid fuel

Scope

This proposal regulates the technical requirements of sludge as auxiliary solid fuel, including sludge quality control, sludge as auxiliary solid fuel pretreatment and utilization, sludge sampling and monitoring methods.
The proposal applies to sludge derived specifically from:

- Primary sludge,
- Residual sludge,
- Mixed sludge generated in the sewage purification process of the municipal sewage treatment plant.

The referred sludge in this standard does not include grid slag, scum and sand pit gravel.